In a project plan, the Work Breakdown Structure (WBS) has been defined as the total representation of the work or stage, including from start to finish the project has a role in project quality. In fact, many bridge construction projects in Indonesia are not in line with planning in terms of schedules and costs, therefore the importance of WBS development especially the risk-based bridge construction project. The results of the following research are expected to be a reference in bridge construction projects.In a project plan, the Work Breakdown Structure (WBS) has been defined as the total representation of the work or stage, including from start to finish the project has a role in project quality. In fact, many bridge construction projects in Indonesia are not in line with planning in terms of schedules and costs, therefore the importance of WBS development especially the risk-based bridge construction project. The results of the following research are expected to be a reference in bridge construction projects.